Description
A portable air conditioner loses a surprising share of its cooling before the air reaches the room. The exhaust hose runs hot by design, that heat radiates into the same space you are trying to cool, and the compressor compensates by working longer. Wrapping the hose is the cheapest intervention in the whole system, and it is the one most people skip.
This sleeve is an Oxford fabric composite shell that slides over the exhaust duct and closes with two straps, no tools and no adhesive. The weave is dense enough to hold a thermal barrier and stiff enough that it does not collapse against the duct when the machine is running. It fits 5 to 5.9 inch hoses, which covers the diameter used by most single and dual-duct portable units sold in the last decade, and runs 150 cm long so the whole exhaust run is covered rather than half of it.
The second benefit is mechanical. Exhaust hoses crease, crack and eventually split at the flex points, and a split hose vents hot air into the wall instead of outside. The sleeve takes the abrasion that the duct would otherwise take, and it hides the accordion plastic that makes a portable unit look like a temporary fix in a finished room.
The cheapest upgrade in the system, and the one nobody installs.
What Makes It Different
- ✦Oxford fabric composite shell that holds its shape against a running duct
- ✦Fits 5 to 5.9 inch exhaust hoses, covering most portable AC units
- ✦150 cm length that covers a full exhaust run rather than half of it
- ✦Two straps close it in seconds, with no tools, tape or adhesive
- ✦Reduces radiant heat from the duct so the compressor cycles less
- ✦Protects the hose from the creasing that eventually splits it
- ✦Turns an accordion plastic duct into a clean fabric line in the room
Technical Specifications
- MaterialOxford fabric composite
- Fits hose diameter5 to 5.9 inch / 12.7 to 15 cm
- Length150 cm
- Width52 cm flat
- Weight250 g
- FasteningTwo straps, tool-free
- ColoursWhite, black
- Thermal functionRadiant heat barrier over the exhaust duct
- CareWipe clean, air dry, do not machine wash
- IncludedSleeve and two straps
Where It Earns Its Place
It is bought by people in rented flats where a split unit is not an option, and by anyone whose portable AC sits in a bedroom where the hose runs across a wall. Small offices, server cupboards, campervans and garage workshops use the same sleeve for the same reason: the duct is hot, the room is small, and the difference shows up on the electricity bill. It also helps in winter with a heat-pump style unit, since the same insulation keeps heat in the duct instead of bleeding it into the room.
The EastSupplier Promise
Sourced directly from vetted manufacturing partners, inspected before dispatch, and priced without distributor layers. If the item arrives outside specification, we replace it or refund it. Every listing on this store is curated by a human buyer, not bulk-imported and abandoned.
Questions Buyers Actually Ask
Q: Will it fit my unit?
Measure the exhaust hose diameter at its widest point, not the connector. Anything between 5 and 5.9 inches is covered. Below 5 inches the sleeve will gather, above 5.9 it will not close.
Q: Does it actually improve cooling?
It reduces the heat radiating back into the room from the duct. On a small room with a long hose run the difference is noticeable within an hour; on a large open space it will be marginal.
Q: Can I cut it to length?
Yes. The Oxford weave does not fray badly, but seal any cut edge with a light stitch or a strip of fabric tape so it does not run over time.
Q: Does it fit a window kit?
It covers the hose, not the window plate. Leave the last 10 cm at the window end free so the plate still seats properly.
Q: Is it fire rated?
It is an Oxford fabric composite, not a fire-rated duct wrap. Keep it clear of the unit's heating element and do not use it on a gas flue.
Q: Can it be used outdoors?
It is fine on a terrace or in a garage, and the fabric tolerates UV better than plastic film. Long-term direct sun will fade the white faster than the black.
Q: How do I clean it?
Wipe with a damp cloth and air dry fully before reinstalling. Machine washing breaks down the composite layer that does the insulating.
Q: Does it make the hose quieter?
Slightly. The fabric dampens some of the airflow noise, though the compressor is the louder source and that sits in the unit.
Customer Reviews
Payment and Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.